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    Process for making polyesters
    1.
    发明申请
    Process for making polyesters 审中-公开
    制作聚酯的方法

    公开(公告)号：US20070197738A1

    公开(公告)日：2007-08-23

    申请号：US11336011

    申请日：2006-01-20

    申请人： Deepak Ramaraju ,  Gomatam Raghavan Ravi ,  Kyle Starkey ,  Michael Donovan ,  Parminder Agarwal

    发明人： Deepak Ramaraju ,  Gomatam Raghavan Ravi ,  Kyle Starkey ,  Michael Donovan ,  Parminder Agarwal

    IPC分类号： C08G63/00 ,  C08F20/00

    CPC分类号： C08G63/46 ,  C08G63/181 ,  C08G63/82

    摘要： A process to make a polyester is described wherein said polyester comprises, a) substituted or unsubstituted diacid or diester; b) substituted or unsubstituted diol; wherein said diol comprises at least about 0.5 mole percent of butanediol; and c) 0.01 weight percent to about 15 weight percent based on the total weight of the composition a reactive organic compound wherein said organic compound comprises of at least one functional group.

    摘要翻译： 描述了制备聚酯的方法，其中所述聚酯包括：a）取代或未取代的二酸或二酯; b）取代或未取代的二醇; 其中所述二醇包含至少约0.5摩尔％的丁二醇; 和c）基于组合物的总重量为0.01重量％至约15重量％的反应性有机化合物，其中所述有机化合物包含至少一个官能团。

    Method of Making Polybutylene Terephthalate and Compositions and Articles Comprising the Same
    5.
    发明申请
    Method of Making Polybutylene Terephthalate and Compositions and Articles Comprising the Same 有权
    制造聚对苯二甲酸丁二酯及其组合物及其制品的方法

    公开(公告)号：US20090275698A1

    公开(公告)日：2009-11-05

    申请号：US12114172

    申请日：2008-05-02

    申请人： Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

    发明人： Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

    IPC分类号： C08G63/91 ,  C08L67/03

    CPC分类号： C08G63/183 ,  C08G63/78 ,  C08G63/80

    摘要： A process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component includes reacting an oligomeric diol component selected from the group consisting of bis(hydroxybutyl)terephthalate, bis(hydroxybutyl)isophthalate, hydroxybutyl-hydroxyethyl terephthalate, and combinations thereof to a reactor; (i) a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers with (ii) a diol component selected from the group consisting of 1,4-butanediol, ethylene glycol, propylene glycol, and combinations thereof, in the reactor under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; combining the first molten mixture is combined with 1,4-butanediol under conditions to form a second molten mixture; and placing the second molten mixture under conditions sufficient to produce the modified polybutylene terephthalate random copolymers. Also described are compositions and articles made from the process.

    摘要翻译： 从聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二醇酯无规共聚物的方法包括将选自双（羟基丁基）对苯二甲酸酯，双（羟基丁基）间苯二甲酸酯，羟基丁基 - 羟乙基对苯二甲酸酯及其组合的低聚二醇组分与反应器反应; （i）选自聚对苯二甲酸乙二醇酯和聚对苯二甲酸乙二醇酯共聚物的聚对苯二甲酸乙二醇酯组分和（ii）选自1,4-丁二醇，乙二醇，丙二醇及其组合的二醇组分，其中 反应器在足以将聚对苯二甲酸乙二醇酯组分解聚为第一熔融混合物的条件下进行; 在第一熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合以形成第二熔融混合物; 并将第二熔融混合物置于足以产生改性聚对苯二甲酸丁二醇酯无规共聚物的条件下。 还描述了由该方法制备的组合物和制品。

    Method of making polybutylene terephthalate and compositions and articles comprising the same
    6.
    发明授权
    Method of making polybutylene terephthalate and compositions and articles comprising the same 有权
    制备聚对苯二甲酸丁二醇酯的方法和包含其的组合物和制品

    公开(公告)号：US07799892B2

    公开(公告)日：2010-09-21

    申请号：US12114172

    申请日：2008-05-02

    申请人： Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

    发明人： Gomatam Raghavan Ravi ,  Deepak Ramaraju ,  Srinivasan Krishnaswami

    IPC分类号： C08G63/00

    CPC分类号： C08G63/183 ,  C08G63/78 ,  C08G63/80

    摘要： A process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component includes reacting an oligomeric diol component selected from the group consisting of bis(hydroxybutyl) terephthalate, bis(hydroxybutyl)isophthalate, hydroxybutyl-hydroxyethyl terephthalate, and combinations thereof to a reactor; (i) a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers with (ii) a diol component selected from the group consisting of 1,4-butanediol, ethylene glycol, propylene glycol, and combinations thereof, in the reactor under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; combining the first molten mixture is combined with 1,4-butanediol under conditions to form a second molten mixture; and placing the second molten mixture under conditions sufficient to produce the modified polybutylene terephthalate random copolymers. Also described are compositions and articles made from the process.

    摘要翻译： 从聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二醇酯无规共聚物的方法包括将选自双（羟基丁基）对苯二甲酸酯，双（羟基丁基）间苯二甲酸酯，羟基丁基 - 羟乙基对苯二甲酸酯及其组合的低聚二醇组分与反应器反应; （i）选自聚对苯二甲酸乙二醇酯和聚对苯二甲酸乙二醇酯共聚物的聚对苯二甲酸乙二醇酯组分和（ii）选自1,4-丁二醇，乙二醇，丙二醇及其组合的二醇组分，其中 反应器在足以将聚对苯二甲酸乙二醇酯组分解聚为第一熔融混合物的条件下进行; 在第一熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合以形成第二熔融混合物; 并将第二熔融混合物置于足以产生改性聚对苯二甲酸丁二醇酯无规共聚物的条件下。 还描述了由该方法制备的组合物和制品。

    COMPOSITION AND METHOD FOR ENHANCEMENT OF ACID VALUE OF POLYESTERS
    7.
    发明申请
    COMPOSITION AND METHOD FOR ENHANCEMENT OF ACID VALUE OF POLYESTERS 审中-公开
    用于提高聚酯酸值的组合物和方法

    公开(公告)号：US20080125567A1

    公开(公告)日：2008-05-29

    申请号：US11564074

    申请日：2006-11-28

    申请人： Deepak Ramaraju ,  Gomatam Raghavan Ravi ,  Gaurav Mediratta ,  Govind Subbanna Wagle

    发明人： Deepak Ramaraju ,  Gomatam Raghavan Ravi ,  Gaurav Mediratta ,  Govind Subbanna Wagle

    IPC分类号： C08G63/16

    CPC分类号： C08G63/916 ,  C08G63/16 ,  C08K5/092 ,  C08L67/02

    摘要： A composition of matter comprising an acid terminated polyester composition containing: (a) a polyester derived from at least one diol selected from the group consisting of ethylene glycol; propylene glycol, butanediol, xylene glycol, and a first diacid component; and (b) a second diacid component; and wherein the composition contains a residual of the second diacid component that is at least less than about 1000 parts per million is disclosed. Also disclosed is a process to prepare these compositions and articles therefrom.

    摘要翻译： 一种包含酸封端的聚酯组合物的物质组合物，其含有：（a）衍生自至少一种选自乙二醇的二醇的聚酯; 丙二醇，丁二醇，二甲苯二醇和第一二酸组分; 和（b）第二二酸组分; 并且其中所述组合物含有所述第二二酸成分的残余物，其至少小于约百万分之一百份。 还公开了从其制备这些组合物和制品的方法。